The conservative rock star says Obamacare is the worst thing since slavery; here are a few historical events that were apparently better than the Affordable Care Act.

Ben Carson: Obamacare Worst Thing Since Slavery

Dr. Ben Carson speaks at the Values Voter Summit

Speaking at the Values Voters Summit in Washington on Friday, conservative commentator Ben Carson declared that "Obamacare is, really I think, the worst thing that's happened in this nation since slavery."

Carson, a retired prominent neurosurgeon, rocketed onto the conservative scene in February when he lambasted President Obama--who was sitting just a few feet away--at a prayer breakfast. Since then, he's inked a columnist deal with The Washington Times and earned buzz as a long-shot presidential candidate.

Carson has never shied away from rhetorical bomb-throwing, and Friday was no different when he made his slavery remark. Carson, who is African-American, explained that Obamacare "was never about health care; it was about control" and making Americans "subservient." Given that logic, here a few things that have happened since the abolition of slavery that are apparently, according to Carson, less bad than Obamacare: